Furnace refractory support



Aug. 1, 1950 c. E. TOWNER FURNACE REFRACTORY SUPPORT 2 Sheets-Sheet 1Filed NOV. 23, 1944 H y m, Wm H w u m JWJ. 2 W Mm wm E R Q N m Aug. 1,1950 Filed Nov. 23, 1944 Patented Aug. 1, 1950 UNITED STATES cremeEURNAEE"REFRACTORYSUPPORT Cha o s. Oak Lawn, Ill essi p n a L -neCc,flhic g r l i, a mrationpf Illincisr Application November 23, 19514;Serial- Nor 564, 87!- 61 Gi nna- 1 Thisqinvention; relates toarefractoryI support 017;;the like, and more'particularly itapplies to a efract r up r r us with i such heatina devices as boilers. or furnaces employingvaporizing wburuers r w th the pes. of banners ernploying ga s or'stokerfeed andjsimilar fuel media.

This inventionapplies particularly to-. an installation inwhich the typeof boiler 01' furnace:

with which thedevice-is associated is restricted at its lower portion;to relatively small clearances and wherein; the overhead; space.provided: is: like Wise aha-premium, In; the latter connection in'order-to; obtain a-greaterappreciation of the y contribution; made bythis; invention; it should be realized that previously with theremovalof a vertically mounted oil burner; for purposes of inspection orrepair,the former methods of making oil burner installations, for example,required at least 3 clearance below thelburher to allow for suchremoval. However, in: contrast'to the requirement just referred to withthe sectional type of. novel refractory support as hereinafterdescribed. in greater detail, the 011101 other type of burnercan beremoved horizontally andwithlittle orno-clearance provisionfor suchremoval. The latter-convenient methodofremoval also avoids the. usualdamageor breakage to the refractory. When the burner is1 removed forrepair or inspection. In the present invention the. proposedrefractorysupport is positioned and. formed so as to minimizelthet-damage theretowhen the burner is removed.

A further importantobject of my invention is to; provide ;a refractorsupport permitting complete access; to the burner vaporizing pot withoutnecessarily disturbing the-refractory hearth.

A further object is to provide a refractory support in which the hearthformedtherewith comprises preferably twoor more sections, a largersection being suitable for attachment to a boiler or the like and with:a smaller section attachable to the oil burner or other similar device.

Another object is to provide a device of the character describedin whichwhen it becomesnecessary to remove the oil burner for reasons abovementioned, the oil line and power 11m. may be simply disconnected andthe burner can then bemoved in a horizontal. plane outwardly with thesmaller hearth section attached thereto until thevoilburner assemblyisfree of the boiler.

A= further important object is to provide a hearth constructionpossessing such flexibility so-as to be capable of being applied toeither rounduorsquare-boilers or furnaces. l

Furthenimportant obj ects and advantages will becomemore readi'l'yapparent in connection with a: reading: 01" the followingr descriptionread; in

light of 'thel accompanying drawings; in which Fig. 1 iszan exteriorperspective-viewof anv oilburner u'nit embodying the novel refractory;support toi'my invention, andwith theunit almost? entirely withdrawnfrom w the: boiler.

Fig. 2 is'a view of 'the reiractory detached from the-boilerandfshowing;the hearth and burner in operative-position.

Fig. 3=is an exterior perspectiveview of the;

novels sectional. frame tor support of" therefractory-a i Similar.-reference characters refer to similar parts throughout-the: severalviews.

Referring: now.- to' Eig Lin which a lower ex terior fragmentary view ofaboiler l is-shown;

the lowenwallof the boiler is provided with a recess orrcutoutwallopening 2- below whichthe' refractory: hearth: support generallydesignated A is mountedand through which th'e centrali- The burnerisconnected to the movable refractory element; the means of attachmentbeing hereinafter described-f The novel hearth structure of thisinvention con portion of the burner moves.

sists essentially of two'parts, one of which is stationary and the othermovable.

substantiallyof circular'form and is-designatedit,

but its shape will vary; in accordance with thedevice with whichit-cooperates. A smaller ele ment is associated with a burner unit andmoves The larger section 3 is fixedly attached to the boiler and thesmaller section is attached to the burner transversely Within thelarger-element}.

pot, the burner assembly being generally desig; nated 5. The burner and.controls are preferably mounted on a common draft tube iifor "the airsupply, as indicated, the draft tube being fixedlyj attached to alower-portion of the burner assem I bly 5 so as to be movable-togetheras a unit.

the completed bottom hearth, when assembled,

The larger{ stationary portion which is fitted in abutting relationwiththe lower portion of the boilerisfor the burner, the refractory beingmolded or applied in the usual manner to fill the respective hollowportions of the frames 3 and 4. The relatively smaller frame section 4is slidable within the stationary frame member 3 by means of the flangedguide i and is supported by,the draft tube upon which the burner 5 andits indicated controls are mounted. The attachment of the smallermovable frame section of the refractory 8 to the burner pot isaccomplished by means of suitable bolts (not shown) engaging the flanges9 and thereby drawing the hoop H securely around the neck flange 12 ofthe burner, as shown in Fig. 1.

In order to close the aperture or cut-out wall opening 2 in the boiler,it may be desirable to provide an arcuately extending upwardlyprojecting shoulder portion l3 in the refractory 8 as indicated, to fillthe opening 2 of the boiler when the burner is in the operating positionshown in Fig. 2. However, it is clear that this construction will varydepending upon the type of boiler employed. Above the level of theflange H! the boiler is generally provided with the inspection or'accessdoor opening which is normally closed by a hinged door (not shown). Thusit is clear that the respective frame sections 3 and 4, when assembled,form the bottom portion of the fire chamber of the boiler. The outer endshoulder portion l3 fills the recess or cut-out wall opening 2 of theboiler, the latter recess being made sufi'iciently high to permit theupper part of the burner pot to pass through into the boiler firechamber. The boiler is suitably supported on legs, not shown, the spacebetween the floor and the bottom of the boiler being sufficient toestablish clearance to allow for horizontal move ment of the unit 5 whenbeing withdrawn. The combined burner unit 5 and the draft tube 6 may beprovided with the supporting adjustable legs l4 to permit of a niceadjustment with the fire chamber of the boiler and a close fit betweenthe shoulder l3 and the recess 2.

As more clearly shown in Fig. 3, it is apparent that the hearthrefractory support mounting is relatively simple and sturdy and the sideguide extension iii allows for easy and accurate movability when itbecomes necessary to inspect or to repair the burner unit 5. In smallboilers in which clearances are held to relatively small di- 3 mensionsthe advantages of this construction will be quite obvious. It shouldalso be understood that the detailed form and the manner in which thesupport is provided -may vary substantially depending upon the type ofinstallation used,

and I desire therefore to be limited only to the scope of the appendedclaims.

I claim? 1. A hearth structure of the character described, incombination with a primary heat generator having a Wall defining thesides of a combustion chamber and having an opening at the lower portionthereof, and a burner unit, the said hearth structure including fixedand movableframe-like portions, the said movable portion moving withsaid burner unit and being movable transversely relative to the fixedportion of the hearth structure, the movable portion and thefixedportion of the hearth structure cooper ating to close the said openingat the lower portion of the combustion chamber, the said movableframe-like portion being formed at an end toreceive the burner unit andto fit snugly within the fixed frame-like portion.

2. A hearth structure in combination with a 4 primary heat generatorhaving a wall defining the sides of a combustion chamber with an openingat the lower portion thereof, a burner unit, the said hearth structureincluding a fixed frame portion with a wall cut-out portion and amovable frame-like member, the fixed frame portion having a cut-outcentral portion open at one end, the movable frame-like member beingmovable within the cut-out central portion and the opening at one end ofthe said fixed frame portion cooperating with said burner unit wherebyboth the frame-like member and said burner unit are movable transverselyrelative to the fixed frame portion of the hearth structure, theframe-like movable member and the fixed frame portion of the hearthstructure cooperating with the said burner unit to close the saidopening at the lower portion of the combustion chamber, the said movableframe-like member having an outer end portion upwardly extending toclose said cut-out portion in the wall of said fixed frame portion ofthe hearth structure when the said movable frame-like member is receivedwithin the cut-out a central portion and the open end of the said fixedframe portion of the said hearth structure.

opening at the lower portion thereof, a hearth mfi structure comprisinga plurality of frames, one

of said frames being movable, the other frame being fixed, a burner unittherefor, the movable frame being movable with the said burner unit andbeing adapted to move transversely and horizontally relative to thefixed frame of the said hearth structure, the said fixed frame, the saidmovable frame, and the said burner unit cooperating when assembled todefine the lower limits I of the combustion chamber.

erator having a wall defining the sides of a combustion chamber andhaving a cut-out wall opening at the lower portion thereof, the saidhearth structure comprising a plurality of frames, one of said framesbeing fixed, a movable burner unit,

the other of the said frames being movable with said burner unit, thesaid latter frame being adapted to move transversely relative to a fixedframe of the said hearth structure, the said fixed frame, the movableframe, and the burner unit cooperating to define the lower limits of thecombustion chamber, the said movable frame being movable transverselywithin the fixed frame, and supporting means burner unit and the saidmovable frame when the movable frame is moved relative to the said fixedframe.

5. A hearth structure of the character described, in combination with aprimary heat generator having a wall defining the sides of a combustionchamber and having an opening at the lower portion thereof, and a burnerunit, the

said hearth structure including a stationary frame and a movable framemember, the latter frame member having an outer shoulder portion,

the said movable frame member cooperating with said burner unit andbeing movable trans versely relative to the stationary frame member ofthe hearth structure, the outer shoulder portion of the movable framemember and the stationary frame member of the hearth structurecooperating to close the said opening at the lower portion of thecombustion chamber and also define its inner lowermost limits, the saidmovable 4. A hearth structure of the character described, in combinationwith a primary heat genjointly carrying the said frame member havingside extension means slidably engageable with the said stationary frameof the hearth structure, the said stationary frame and the movable framemember having adjoining relieved portions therebetween forming whenassembled an aperture to receive at least a portion of the said burnerunit.

6. A hearth structure of the character described, in combination with aprimary heat generator having a wall defining the sides of a combustionchamber and having an opening at the lower portion thereof, the saidhearth structure comprising a plurality of stationary and movableframes, the movable frame having an upwardly extending outer shoulderportion, a burner unit, one of the said frames cooperating with saidburner unit to the extent of being movable with the said burner unit andbeing adapted to move transversely relative to the stationary frame ofthe said hearth structure, the respective stationary frame, the movableframe, and the burner unit cooperating to close said opening at 6 thelower portion of the combustion chamber, the burner unit being connectedto the movable frame and being movable therewith in a horizontal planewithin a relieved portion of the said stationary frame.

CHARLES E. TOWNER.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 931,712 I Adair Aug. 24, 19091,844,932 Chadwick et a1. Feb. 16, 1932 1,871,952 Chadwick et a1. Aug.16, 1932 2,161,220 Beckett June 6, 1939 2,197,619 Mueller Apr. 16, 19402,243,249 Craig May 27, 1941 2,247,859 Purtell July 1, 1941 2,385,065DuBrie Sept. 18, 194

